ITBS Mathematical Problem Solving 5

Question 1

A recipe requires 2⅓ cups of flour for one batch of cookies. How much flour is needed for 3 batches?

Accepted Answer

7 cups

Answer

2⅓ × 3 = 7/3 × 3 = 7 cups.

Question 2

On a number line, which point is closest to −2.7?

Accepted Answer

−2.5

Answer

−2.7 is 0.2 away from −2.5, which is closer than −3 (0.3 away) or −2 (0.7 away).

Question 3

Sam earns $12.50 per hour and worked 36 hours last week. He also received a $25 bonus. What were his total earnings?

Accepted Answer

$475

Answer

$12.50 × 36 = $450, plus $25 bonus = $475.

Question 4

A triangle has angles measuring 45° and 75°. What is the measure of the third angle?

Accepted Answer

60°

Answer

The sum of angles in a triangle is 180°, so the third angle = 180° − 45° − 75° = 60°.

Question 5

A store buys a toy for $8 and sells it for $14. What is the percent markup on the original cost?

Accepted Answer

75%

Answer

Markup = $14 − $8 = $6; percent markup = ($6 ÷ $8) × 100 = 75%.

ITBS - Iowa Test of Basic Skills Exam Practice Test